Granted Patent
Utility
US 4,347,752 · App. 06/178,836
Apparatus for converting rotary motion to a rectilinear force
Inventor:
Frederick Dehen
Patented Case
View Patent ↗
Granted: Sep 7, 1982
Filed: Aug 18, 1980
Inventor
Frederick Dehen
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.